BE Production Engineering Semester 2 (FE First Year)University of Mumbai
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Applied Chemistry 2 CBCGS 2017-2018 BE Production Engineering Semester 2 (FE First Year) Question Paper Solution

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Applied Chemistry 2
CBCGS
2017-2018 June
Marks: 60

1) Question No. 1 is compulsory
2) Attempt any three questions from the remaining five questions


[15]1 | Attempt any 5 of the following:
[3]1.a

Define Power Alcohol. 

Concept: Combustion
Chapter: [8] Fuels

Give any two advantages of power alcohol.

Concept: Combustion
Chapter: [8] Fuels
[3]1.b

Explain why cathodic coating is preferred over anodic coating for manufacturing of containers to store food stuffs.

Concept: Cathodic Protection Sacrificial Anodic Protection
Chapter: [6] Corrosion
[3]1.c

A sample of coal has the following composition:- C= 70% O=23% H=5% S=1.5% N=0.4% Ash=0.1% Calculate GCV of this fuel.

Concept: Calorific Value - Gross Or Higher Calorific Value
Chapter: [8] Fuels
[3]1.d

Give the composition, properties and uses of high phosphorous bronze.

Concept: Non-ferrous Alloys - Composition, properties and uses of Alloys of Cu
Chapter: [7] Alloys
[3]1.e

Why is it essential to design safer chemicals and products wrt green chemistry principle? Explain with an example.

Concept: Green Chemistry - Twelve Principles of Green Chemistry
Chapter: [10] Green Chemistry
[3]1.f

What is matrix phase and particle phase in concrete? Give any two properties of concrete.

Concept: Composite Materials - Constitution of Composite Materials
Chapter: [9] Composite Materials
[3]1.g

Porous Film is also called as ‘Non protective Film’. Explain with an example.

Concept: Types of Corrosion - Dry Or Chemical Corrosion Due to Oxygen
Chapter: [6] Corrosion
[15]2
[6]2.a

Define Electrochemical Corrosion. Explain Intergranular Corrosion with a neat diagram.

Concept: Types of Electrochemical Corrosion Intergranular Corrosion
Chapter: [6] Corrosion
[5]2.b
[3]2.b.i

1.95 gm of coal sample was taken for nitrogen estimation by Kjeldahl’s method. The ammonia liberated required 9.5 ml of 0.4 N H2SO4 for neutralization. Calculate the percentage of nitrogen in coal sample.

Concept: Solid Fuels - Analysis of Coal
Chapter: [8] Fuels
[2]2.b.ii

Write a note on Green Solvents.

Concept: Green Solvents
Chapter: [10] Green Chemistry
[4]2.c

Explain structural Composition of plywood.

Concept: Classification of Composite Materials - Structural Composites
Chapter: [9] Composite Materials
[15]3
[6]3.a

Define Fuel Cell

Concept: Fuels
Chapter: [8] Fuels

Explain Hydrogen Oxygen Fuel Cell with a neat diagram.

Concept: Fuels
Chapter: [8] Fuels
[5]3.b
[3]3.b.i

Define Shape Memory Alloys.

Concept: Shape Memory Alloys
Chapter: [7] Alloys

Give Shape Memory Alloys properties and uses.

Concept: Non-ferrous Alloys - Composition, Properties and Uses Of- Alloys of Aluminium
Chapter: [7] Alloys
[2]3.b.ii

Define bio-diesel.

Concept: Biodiesel
Chapter: [8] Fuels

give advantages of bio-diesel.

Concept: Biodiesel - Advantage and Disadvantages of Biodiesel
Chapter: [8] Fuels
[4]3.c

Calculate the % atom economy for the following reaction with respect to acetophenone. 
C6H6+CH3COCl = C6H5COCH3+HCl

Concept: Numerical on Atom Economy
Chapter: [10] Green Chemistry
[15]4
[6]4.a

What is cathodic protection?

Concept: Cathodic Protection Impressed Current Method
Chapter: [6] Corrosion

Explain impressed current cathodic protection with the applications.

Concept: Cathodic Protection Impressed Current Method
Chapter: [6] Corrosion
[5]4.b
[3]4.b.i

What is green chemistry?

Concept: Green Chemistry
Chapter: [10] Green Chemistry

Give significance of green chemistry.

Concept: Green Chemistry
Chapter: [10] Green Chemistry
[2]4.b.ii

Define Composite.

Concept: Composite Materials
Chapter: [9] Composite Materials

Give any two applications of composite materials.

Concept: Composite Materials
Chapter: [9] Composite Materials
[4]4.c

What is powder metallurgy?

Concept: Powder Metallurgy - Applications of Powder Metallurgy
Chapter: [7] Alloys

Explain hot compaction method with a neat labelled diagram.

Concept: Powder Metallurgy - Compacting
Chapter: [7] Alloys
[15]5
[6]5.a

A gaseous fuel contains H2=50% CH4=30% N2=2% CO=7% C2H4=3% C2H6=5% and water vapours=3%. Calculate weight and volume of air for 2m3 of the gas.

Concept: Combustion
Chapter: [8] Fuels
[5]5.b
[3]5.b.i

List the three main constituents of paint and give functions of each.

Concept: Organic Coatings
Chapter: [6] Corrosion
[2]5.b.ii

Explain the effect of the following alloying elements on steel.

Concept: Effect of the Alloying Element- Ni, Cr, Co, Mn, Mo,W and V
Chapter: [7] Alloys
[4]5.c

Explain conventional and green chemistry route for production of Ibuprofen. Highlight the green chemistry principle involved.

Concept: Conventional and green synthesis of Ibuprofen
Chapter: [10] Green Chemistry
[15]6
[6]6.a

Write short note on Compacting.

Concept: Powder Metallurgy - Compacting
Chapter: [7] Alloys

Write short notes on Sintering.

Concept: Powder Metallurgy - Sintering
Chapter: [7] Alloys
[5]6.b
[3]6.b.i

What are fiber reinforced composite?

Concept: Classification of Composite Materials - Fiber – Reinforced Composites
Chapter: [9] Composite Materials
[2]6.b.ii

Explain how areas of cathode and anode affect the rate of corrosion.

Concept: Factors Affecting the Rate of Corrosion Relative Area of Anodic and Cathodic Parts
Chapter: [6] Corrosion
[4]6.c

Explain the determination of % moisture and % volatile matter in a coal sample.

Concept: Solid Fuels - Analysis of Coal
Chapter: [8] Fuels

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